Improved otjthattl for boomis



waited @tiene ate-nt @inline Letters Patent No. 92,539, dated July 13, 1869.

IMPROV'ED OUTHA'UL FOR BOOM-S.

The ScheduIJefen-ed to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, THOMAS ONEILL, `of New York, in the county of New York, and State of New York, have invented a new and improved Outhaul for Booms; and I do hereby declare that the followingl is a full, clear, and exact description thereof', which will enable others skilled in the art to make and use' the same, reference being had -to the accompanying drawings, forming part of this specification, in which- Figure 1 represents a vertical longitudinal section of a portion of aboom provided with my improved outl ail. y

Figure 2 is a vertical transverse section of the same, the plane of section being indicated by the line a: x, lig. 1. v

Similar letters of reference indicate corresponding parts.

rlhis invention relates tofcertain improvements on the outhaul 'for which Letters Patent, No. 82,133, were granted to'Georg'e W. Leighton and C. O. Cole, on the 15th day of September, 1868.

rlhe object of the present invention is to so construct the outhaul that it can be operated from the deck on fore-and-aft booms, and that the apparatus by which it is worked can be applied tothe inner part oi' the boom.

The apparatus described in the aforesaid Letters Patent must be applied near the outerend of a boom vor yard, opposite the claw of the sail, so as to receive the said claw inthe manner there specified.

To move the pawl or dog, in order to stretch or slacken the sail, it was necessary that a man should go to the outer end of the. boom, or stand on the footropes, so as to come in reach of the dog or pawl.

I have invented an attachment to the aforesaid outhaul, whereby the operating-device can be carried to the under side ot' the boom, to the inner part ot' the same, so that the sail may conveniently be stretched or slackened by a man ou deck.

My invention consists in securing another' rack to the under side of the boom, near the inner part of the same, and in arranging a sliding dog, with spring-pand, thereon, saidl dog being connected, by means ot' arope or chain, that is passed over a pulley at the outer end of the boom, with the dog on the upper orinain rack.

By operating the inner lower dog, the upper outer one will, in the same manner, be worked, and can be moved, to slacken or stretch a sail, without requiring the attendance ot' a man at the outer end ofthe boom.

rlhe labor of making sails taut or slack is, bythe use of my improved attaclnnent, considerably red uccd.

A, in the drawing, represents a portion of a boom.

b isthe rack, arranged near the outer end, on the upper side of the same.

B is the dog, working on the rack b, dovetailed, with its foot d, into a corresponding groove of the boom.

d is the pawl, pivoted to or connected with the dog.

c is the loop, link, or staple, to receive the claw of the sail, and

j', the ring, by means of which the dog is moved.

All these parts are constructed and arranged substantiall y as described in the aforesaid Letters Patent, and do not atlall form part of my invention.

-On the under side of the boom A iscountersunk, or otherwise arranged, near the inner endof the same, at any part within convenient reach, another rack, C, on which a doveta-iled sliding dog, D, is also arranged, as shown, said dog sliding in a track, provided on the boom, in a manner similar to that shown in the upper dog, and so that it cannot drop out.

'lo the dog D is hinged, or with it is connected a jointed pawl, g, which is, by a spring, 71., attached to the dog, thrown into the rack C.

t is a ring or loop, or equivalent device, formed ou the outer partI of the dog D. l

It is, by means of a ropeor chain, E, which passes over a roller, j, on the outer end of the boom, and

which is fastened, with its other end, to the ringfot the upper dog B, connected with said upper dog.

, From the inner end of the dog D projects a loop, link, or staple, 7.','throngh which a lever, F, may be titted,'to draw it along.

X'Vhenever, by means of the lever F, or otherwise, the dog,r D is drawn inward, the dog B will, by the connecting-rope E, be drawn outward, to haul the sail taut, thepawls d and 'y locking both dogs in the teeth of the racks l1 and D respectively, as is clearly shown in fie. 1.

Aguy-rope, I, is secured to the pawl d', and another, on., to the pawl l/. By pulling on them, the dogs will be released, so that the sail may slacken itself when it is overstretched by shrinking.

It will be readily understood that this device can be conveniently worked on deck, as long as the dog B can be pulled by a lever, or otherwise, without requiring the boom to be reached.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patent- Connecting the sliding dog B of the outhaul, on the outer end of the boom, by means of a rope or chain, E, with a sliding dog, D, arranged ou the inner part of the boom, iat the under side of the same, so ghat -the outhaul can be operated from deck, as speci- \Vitnesses: THOS. ONEILL.

FRANK BLOCKLEY, Y ALEX. F. ROBERTS. 

